• THE FINAL FACTOR photo | Khloe Kardashian, Mario Lopez

Credit: Denise Truscello/Wireimage

Published: Friday December 13, 2013 13:00 PM EST



While Lamar strives to find a rhythm with the L.A. Clippers, 2012 also finishes on a sad note for Khloé, who gives up her cohosting duties on The X Factor, blaming "a busy schedule" for her departure. "I've never hosted anything in my life," she said. "So, to go from nothing to being thrown into live TV, it was really hard," she revealed on The Tonight Show with Jay Leno, adding there's "no bad blood" between her and the singing competition's head honcho, Simon Cowell.